This paper describes the work performed by the Italian Aerospace Research Centre (C.I.R.A. S.c.P.A.) in a technology project focused on the applicability of modified diboride compounds structures to the manufacturing of high performance and slender shaped hot structures for reusable launch vehicles. A prototypal multi‐material structure, which couple reinforced diborides to a C/SiC frame, has been built with the aim to demonstrate the applicability of an innovative concept of nose cap to the fabrication of real parts to be installed ant subsequently tested on the flying test bed currently under development at CIRA. Particular relevance is given to the on‐ground qualification test of the nose‐cap scaled demonstrator which is underway at CIRA Arc‐Jet facility SCIROCCO. Considering the specific typology of materials investigated, up to date, a consistent tests campaign at laboratory level has been performed and concluded in order to create a complete materials data base. The measured materials properties have been then used as input for the design phase that also used as inputs the aero‐thermal loads associated with a reference re‐entry mission. Our major preliminary findings indicate that the structure is thermally fully compliant with the environment requirements and shows local mechanical criticalities in specific areas such as the materials interfaces and hot/cold joining parts.


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    Title :

    Advanced Ceramic Materials for Sharp Hot Structures: Material Development and On‐Ground Arc‐Jet Qualification Testing on Scaled Demonstrators


    Contributors:

    Conference:

    SPACE TECHNOLOGY AND APPLICATIONS INT.FORUM-STAIF 2005: Conf.Thermophys in Micrograv;Conf Comm/Civil Next Gen.Space Transp; 22nd Symp Space Nucl.Powr Propuls.;Conf.Human/Robotic Techn.Nat'l Vision Space Expl.; 3rd Symp Space Colon.; 2nd Symp.New Frontiers ; 2005 ; Albuquerque, New Mexico (USA)


    Published in:

    AIP Conference Proceedings ; 746 , 1 ; 129-140


    Publication date :

    2005-02-06


    Size :

    12 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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